Evoprene™ COGEE 631

Category: SEBS , Styrene Ethylene Butylene Styrene Block Copolymer
Manufacturer: AlphaGary
Trademark: Evoprene™ COGEE
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: LXE3fC_Evoprene-COGEE-631.pdf
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Message
The Evoprene COGEE range was specially developed to provide materials which will comould or coextrude to engineering thermoplastics (ETPs). This enables, for example, polyamide (nylon) handles or ABS housings to be given a solt touch feel whilst polycarbonate lenses can have gaskets moulded on to provide a weathertight product.

The Evoprene COGEE grades are modified Kraton G based compounds. Many of the characteristics exhibited by the Evoprene G and Evoprene Super G ranges are shown by Evoprene COGEE compounds. However, they do have to be processed quite differently to obtain optimum bond strengths and performance characteristics.
General Information
Features
  • Good Weather Resistance
  • Ozone Resistant
Uses
  • Soft Touch Applications
Processing Method
  • Coextrusion
  • Extrusion
  • Injection Molding
PhysicalNominal ValueUnitTest Method
Density 1.05g/cm³ISO 2781
HardnessNominal ValueUnitTest Method
Shore Hardness (Shore A)50ISO 868
MechanicalNominal ValueUnitTest Method
Abrasion Resistance 271mm³DIN 53516
ThermalNominal ValueUnit
Service Temperature -30 to 60°C
Additional InformationNominal ValueUnitTest Method
Bond Strength 0.940MPaInternal Method
M-S Flow 1.67MPaInternal Method
Ozone Resistance 1(35°C)No CracksISO 1431-1
UV Rating 2(40°C)No Visible Cracks or Crazing
ElastomersNominal ValueUnitTest Method
Tensile Stress ISO 37
    100% Strain 2.20MPa
    300% Strain 3.70MPa
Tensile Stress (Yield)3.60MPaISO 37
Tensile Elongation (Break)320%ISO 37
Tear Strength 324kN/mISO 34-1
Compression Set ISO 815
    23°C, 72 hr 37%
    70°C, 22 hr 89%
    100°C, 22 hr 89%
AgingNominal ValueUnitTest Method
Change in Tensile Strength in Air (125°C, 336 hr)6.0%ISO 1817
Change in Tensile Strain at Break in Air (125°C, 336 hr)22%ISO 1817
Change in Shore Hardness in Air (125°C, 336 hr)9.0ISO 1817
InjectionNominal ValueUnit
Drying Temperature 80.0°C
Drying Time 4.0 to 6.0hr
Suggested Max Regrind 20%
Rear Temperature 250 to 270°C
Middle Temperature 250 to 270°C
Front Temperature 250 to 270°C
Nozzle Temperature 250 to 270°C
Processing (Melt) Temp 280°C
Mold Temperature 30.0 to 60.0°C
Injection Rate Fast
Vent Depth 0.020 to 0.050mm
Note Message
1 .100 pphm/200 hrs/20% Strain
2 .350 hrs
3 .Method Ba, Angle (Unnicked)
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